8月28日，同煤集团总工程师于斌主持召开技术工作例会。
August 28, with the Coal Bin, chief engineer at the regular meeting hosted technical work.
于斌向课题组一行简要介绍了同煤集团的基本情况，重点就企业煤矸石的综合利用情况作了介绍。
Yu Bin a brief introduction to the discussion group with the Coal line of basic information, focusing on the situation on the comprehensive utilization of coal enterprises are introduced.
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